1998–2006 — Secretary of the Laboratory of systematics and geography of fungi

2005— Secretary of the International conference «Fungi in natural and anthropogenic ecosystems» (St. Petersburg, Ruusia)

2005 — organizer of the Symposium «Fungi in ecosystems of different origin and state: species diversity and ecological adaptation» in the network XVII International Botanical Congress (Austria, Vienna)

2000 — Secretary of the International conference «Mycology and Cryptogamic Botany in Russia: traditions and modern state» (St. Petersburg, Russia)

Kotkova V.M. Rare and new for the territory of St. Petersburg species of aphyllophoraceous fungi (Basidiomycota) // Novosti Syst. Nizsh. Rast. 2014. Vol. 48. P. 146–151 (in Russian, with English summary).

Kotkova V.M. Aphyllophoraceous fungi on spruce in the North of European part of Russia / Problems of forest Phytopathology and Mycology: Proceed. 6th Int. conf. Moscow-Petrozavodsk, 2005. P. 197–203 (in Russian, with English summary).